1. Praxis I 13 Oct 2010

2. Outline Component & Device Measurement and Instrument Datasheet How to build circuit using breadboard

3. Resistors Resistors in electronic circuit are typically rate 1/8W, 1/4W and 1/2 W The resistance value (in ohms) can be read by using Digital multi- meter (DMM) or color code Variable resistor Fix resistor Symbol

4. Color Coding

5. Example 1 Example 2 ohms

6. Capacitor Electrolyte capacitor Ceramic capacitor C1 Symbol + Ceramic capacitor value can be with Numeric coding. Electrolyte capacitor has the polarity

7. Diode Light Emitting Diode (LED)Diode Diode is a electronic component that conducts electric current in only one direction Since LED is a diode, meaning that it is polarized. By convention, current can only go from the anode (positive end) to the cathode (ground, or negative end).

8. Datasheet Part Number and Description Electrical characteristic  Max/Min supply voltage Mechanical characteristic  Pin layout  Footprint and dimension Application

9. Breadboard Breadboard is used to make up temporary circuits for testing or to try out an idea. No soldering is required so it is easy to change connections and replace components.

10. Practice Given Schematic  List of the components that will be used  Search datasheet of components that you don’t know Design layout on breadboard  Align all components on breadboard  To put a wire to connect all components corresponding to schematic Do and Test !!

11. Schematic http://simpleelectronic.com/2009/05/05/simple-traffic-light-circuit-diagram-using-timer-and-counter-ics/ N4148 as diode